Close SketchUp if it’s opened.
Open a new Windows Explorer window.
Navigate to C:\ProgramData\SketchUp\SketchUp 2015
Right-click on the SketchUp.lic license file and select Open.
Click the button for “Select a program from a list of installed programs” and then click OK.
Select Notepad then click OK.
Add the text ##NoTrial to the top line in the license file. See the image below
Click File > Save.
Close Notepad.
Open SketchUp Make 2015.
Accept the Terms of Use agreement in the Welcome Window.
Start using SketchUp.
MAC
Close SketchUp if it’s opened.
Open a new Finder window.
Click Go in the top menu bar.
Select Go to Folder…
Enter the path ~/Library/Application Support/SketchUp 2015/
Right-click on the SketchUp.lic license file and select Open With… > Other.
Select TextEdit then click OK.
Add the text ##NoTrial to the top line in the license file. See the image below
Click File > Save.
Close TextEdit.
Open SketchUp Make 2015.
Accept the Terms of Use agreement in the Welcome Window.
Start using SketchUp.
the image is missing, but not really needed…
when you open the .lic file ‘Save Copy As’ and ‘backup’ to the name before the .lic bit…
then follow the instructions and comeback if it fails, knowing you can always rename the renamed file if it goes tit's up…
john
Found out that the SketchUp.lic under Make 2017 is an empty file. Added the ##NoTrial tot the file anyways… did the same to the EW.lic and the liclog.txt. After saving all modifications opened SketchUp back up and got the notification of 30 day Trial period being over. Only had to click " I agree" to continue under the free license.